Abstract: A method and apparatus for power conservation is provided for a multi-mode wireless communication device (100) capable of operating in a plurality of networks, each of the plurality of networks having a network signal with predetermined spectral characteristics. The wireless communication device (100) includes a variable bandwidth signal detector (140), a threshold detector (145), and a controller (120). The variable bandwidth signal detector (140) receives radio frequency (RF) signals and defines a detection bandwidth for signal detection. The threshold detector (145) is coupled to the variable bandwidth signal detector (140) and detects a network signal within the RF signals in response to determining whether a signal is present within the detection bandwidth having a signal strength greater than a predetermined signal strength.

Abstract: A handheld instant messaging terminal manages multiple conversation sessions across multiple instant messaging services.

Abstract: A method, apparatus or tangible computer medium (which stores computer executable code or program code) performs or facilitates obtaining information concerning one or more characteristics of one or more monitored wireless signals or links, such as radio frequency (RF) signals, transmitted across a geographic area; and detecting a presence of an object in the geographic area according to a variation of a characteristic of one or more of the RF signals reflecting interference of the RF signal(s) by the object.

Abstract: An object of the present invention is to provide means for eliminating a transmission delay when transmitting emergency information for the sake of relief, security, or the like in a wireless device in conformity with the wireless LAN standard in which if radio waves transmitted from peripheral devices are detected, transmission has to be stopped. In a multimode wireless communication scheme having two or more communication schemes, priorities of the communication schemes are set. A high priority or low priority regarding to a message is described in a “message type” data field of a frame of a controlling channel output from the access point side to the terminal side. When the frame of the controlling channel is decrypted on the terminal side, the message type is confirmed, so that the type of a service channel used thereafter is confirmed and the channel is coupled.

Abstract: A wireless network device comprises a first RF transceiver module and a control module. The first RF transceiver module transmits a first data frame to a second RF transceiver module and receives a first acknowledgement (ACK) frame from the second RF transceiver module after a first delay period. The first RF transceiver module transmits a second data frame to the second RF transceiver module and receives the second ACK frame from the second RF transceiver module after a second delay period. The control module communicates with the first RF transceiver module and determines a total delay period based on the first and the second delay times. The control module determines an actual delay period between the first and the second RF transceiver modules based on the total delay period.

Abstract: Embodiments of the disclosure provide a system and method for providing channel feedback information (CFI) from a user equipment device to a base station. CFI is transmitted from the user equipment device on first and second communication channels. The user equipment device is operable to measure the channel rank of a downlink channel and to select a preferred channel rank that is used to configure the CFI that is transmitted to the base station. The base station is operable to use the preferred channel rank to interpret the CFI transmitted by the user end device.

Abstract: A method for grouping wireless devices and an apparatus thereof are provided. First, the feature values of a plurality of access points (APs) detected by a wireless device are received, wherein these APs are designated as a first set, and the feature values of the APs constitute a feature vector. A first grouping process is performed to the wireless device according to the first set, which allocates the wireless device to an appointed clustering factory. A second grouping process is performed to the wireless device according to the feature vector, which divides all of the wireless devices within the appointed clustering factory into a member group or a noise group. Eventually, the grouping result is transmitted to the wireless device.

Abstract: Wireless communication is carried out between devices. A highest frequency band is selected. When the selected frequency band includes an unused channel in which no disturbing wave is present, a maximum transmission rate at which a received field strength value exceeds a threshold value is determined. When the selected frequency band does not include an unused channel or one in which no disturbing wave is present or there is no transmission rate associated with the selected frequency band at which the received field strength value exceeds the threshold value, the next highest frequency band is successively selected and the above is repeated. When the maximum transmission rate is successfully determined, communication is initiated using the unused channel of the selected frequency band at the maximum transmission rate as a communication channel.

Abstract: A wireless communication network system including: a command station for allocating a frequency band, broadcasting a backup station and periodic measurement periods in which a terminal should measure a reception quality, and stopping the allocation of the frequency band to the terminal during the measurement period; one or a plurality of backup stations for synchronizing with the command station and transmitting a measurement signal by using the same frequency channel as that of the command station; and one or a plurality of terminals for measuring a reception quality for each backup station by using the measurement signal.

Abstract: The present invention relates to a method for allocating resources to a plurality of secondary stations for enabling communication between a primary station and the plurality of secondary stations, comprising the steps of a) grouping the resources into at least a first set of resources and a second set of resources; b) allocating a first resource of the first set of resources to a first secondary station, said first resource having a first index in the first set of resources; c) allocating a second resource of the second set of resources to the first secondary station, said second resource having a second index in the second set of resources being equal to the first index plus an offset based at least partly on other information known to the primary and first secondary station.

Abstract: The invention relates to control of link resources in a wireless telecommunications system, in which instant channel feedback information is transmitted from a mobile terminal in response to receipt of a selection message from a basestation, and the instant channel feedback information is used for real-time resource allocation and adaptation at the basestation. The feedback information includes channel quality information derived from pilot signals and from pre-allocated transmission weights.

Abstract: The invention provides a radio base station which can achieve high throughput while attaining the target quality for each mobile station and fairly assigning a transmission opportunity. In the radio base station, when a mobile station selection unit is notified at a fixed period of time by a data flow control unit with respect to a mobile station which has data to be transmitted, the unit selects a plurality of mobile stations which don't achieve the service quality. The plurality of mobile stations selected by the mobile station selection unit are input into a PF scheduler. From these mobile stations, a mobile station to which a transmission opportunity is assigned, is determined. A mobile station notification unit assigns a transmission opportunity to the mobile station determined by the PF scheduler.

Abstract: Provided are a system and a method for allocating resources in a communication system. The method includes mapping a Transmission Time Interval (TTI) class according to channel information transmitted from a mobile station and service class information of the mobile station; and allocating resources by dynamically configuring a frame based on the mapped TTI class.

Abstract: A disclosed base station apparatus for a mobile communication system includes a collection unit collecting measured data from one or more user equipment terminals with respect to each direction of arrival, the measured data including at least quality information of a downlink signal, a conversion unit converting the measured data into an evaluation value in accordance with a predetermined evaluation function, a deriving unit deriving a weight update amount determining directivity based on an angular distribution of the plural evaluation values, and a transmission unit transmitting a downlink signal weighted based on the weight update amount.

Abstract: A transmission method includes transmitting a signal using an orthogonal frequency division multiplexing, receiving the transmitted signal at a plurality of reception devices, and controlling a transmission power for first signals transmitted to the plurality of reception devices in an area formed by the transmitter to be greater than a transmission power for second signals transmitted to a specific device in the area, wherein said first signals and said second signals are time division multiplexed.

Abstract: A radio scheduling apparatus in a radio communication system in which a modulation scheme is selected in accordance with radio quality includes radio quality acquisition means and scheduling means. The radio quality acquisition means acquires radio quality information indicative of radio quality for each mobile station. The scheduling means determines the degree of urgency for assigning a radio channel according to the radio quality, based on the radio quality information acquired by the radio quality acquisition means, and preferentially assigns a radio channel to a mobile station having a high degree of urgency.

Abstract: A node may include a receiver configured to receive signals transmitted from a gateway and a logic device coupled to the receiver. The node may also include a memory configured to store label information identifying a data packet stored in the node. The logic device may be configured to receive a message from the gateway, where the message includes label information, and access the memory to identify a data packet based on the label information included in the message. The node may also include a transmitter configured to transmit the data packet to the gateway over a channel shared with a number of other nodes.

Abstract: A device is dedicated to adapting modulation and coding schemes to be applied to data intended to be broadcast by means of a dedicated carrier over a forward channel of a radio communication network to radio terminals (UE) connected to at least that radio communication network. This device (D) comprises processing means (PM) tasked with adapting at least one modulation and coding scheme to be applied to data intended to be broadcast by means of the dedicated carrier, based on actual radio broadcast conditions, over links established between the radio network and radio terminals (UE) which are recipients of the data to be broadcast.

Abstract: The invention refers to a method for use by a first node in an ad-hoc WLAN, which first node maintains a table of other nodes within the network which can be used for forwarding messages. The method comprises the step of letting the first node receive a first signal from a second node, and additionally comprises the steps of: -letting the first node analyse the signal received from the second signal, -if the second node is already present in the table maintained by the first node, the signal strength is compared to a first predetermined comparison level, -if the second node is not present in the table, its signal strength is compared to a second predetermined comparison level, -if the signal strength from the second node exceeds the relevant comparison level, the first node decides that the second node may be used in the table.

Abstract: In a radio access network (e.g., a cellular network), a radio receiver is configured with a switch that alternatively couples an antenna and an impedance-matched load to the remainder of the receiver. Sector load, e.g., rise-over-thermal (ROT), is monitored by comparing a first measurement of signal power in a radio receiver (e.g., signal power output by the receiver) when the radio receiver is coupled to an antenna receiving the data traffic with a second measurement of signal power in the radio receiver when the radio receiver is de-coupled from the antenna.

Abstract: Disclosed is a method for selecting a communication network by a wireless terminal, the method including receiving a signal having a predetermined reception power level from one or more communication networks, and calculating a guaranteed data rate of each of said one or more communication networks by using the predetermined reception power level of the signal; comparing the calculated guaranteed datarate with a minimum guaranteed datarate; and calculating a selection factor value of each of said one or more communication networks by using the guaranteed datarate when all guaranteed datarate of said one or more communication networks are equal to or greater than the minimum guaranteed datarate, and selecting a communication network having a lowest selection factor value.

Abstract: In a multiple-input multiple-output transmission system (MIMO system), a receive station detects whether or not there is an error in each data stream, estimates the state of the propagation path of each transmit antenna and reports, to the transmitting side, re-transmission necessary/unnecessary information, for every data stream, created based upon whether or not there is an error, and the state of the propagation path of each transmit antenna. A transmit station decides a transmit antenna that transmits a data stream requiring re-transmission, based upon the reported state of the propagation path of each transmit antenna, and re-transmits the data stream requiring re-transmission from the transmit antenna decided.

Abstract: Certain embodiments of the invention may be found in a method and system for a simplified user group selection scheme with finite-rate channel state information feedback for frequency division duplex (FDD) multiuser multiple-input-multiple-output (MIMO) downlink transmission. Aspects of the method may include selecting, from a plurality of users, a first user having a channel gain that is greater than a channel gain corresponding to a remaining portion of the plurality of users. At least a second user may be selected from a portion of the remaining portion of the plurality of users. The selected at least the second user has a channel direction that may be approximately orthogonal to that of the first user. The channel gain may be defined by a quantized channel gain. A quantized channel direction of the selected first user may be determined for the selecting the at least the second user.

Abstract: A mobile station includes processing circuitry and a memory storing a preferred roaming list and system priority data. The processing circuitry is adapted to detect a communications event for a currently selected wireless communications system and update an entry in the system priority data to reflect the occurrence of the detected communications event. The use of stored statistical information improves the efficiency of the system selection and acquisition process. In operation, a group of wireless communications systems is selected from the preferred roaming list in accordance with a predetermined system acquisition procedure. The group is reprioritized using the priority data and the mobile station attempts to select the wireless communications system having the highest priority in the reprioritized group. The reprioritization may include sorting the group using the priority data and removing systems from the group that do not meet certain priority criteria.

Abstract: A mobile terminal is provided having a memory, a display, a wireless communication unit having a first module to receive a first broadcast signal and a second module to receive a second broadcast signal, and a controller to control the wireless communication unit, wherein when a signal strength of the first broadcast signal received by the first module is less than a first signal strength, the controller to control the second module to receive the second broadcast signal and the second broadcast signal is buffered in the memory while the display displays content corresponding to the first broadcast signal received by the first module.

Abstract: A distributed coverage hole recovery process using connectivity information is proposed for wireless sensor networks and other wireless networks. A link is said to exist between two nodes which are sufficiently close. After a un-triangulated hole is detected enclosing by links between N (N>3) active boundary nodes, the distributed hole recovery process activates one or two redundant nodes to recover the hole at each iteration. This process is performed iteratively by each of the active boundary nodes adjacent to the hole independently without any central controller. It requires 2 hops connectivity or neighbor information from each boundary node adjacent to the hole. After each hole recovery iteration, the hole is reduced in size or split into two smaller holes. Then the hole recovery process repeats until the hole is recovered or detected as unrecoverable.

Abstract: A method and apparatus for scheduling the data packets transmitted to a plurality of mobile terminals supporting multiple quality of service (QoS) grades in a multichannel wireless communication system includes a storage device for storing queues and data packets of the mobile stations, the queue and data packets of each of the mobile stations being arranged in an order of the quality of service grades; and a scheduler for allocating resources of multiple channels to the mobile stations based on different scheduling metrics separately applied to the multiple channels according to the quality of service grades, each of the scheduling metrics applied to a particular one of channels being used to select one of the mobile stations whose data packets are transmitted through the particular channel; wherein entire data packets of the mobile stations are transmitted through the multiple channels when the allocation of the channel resources has been completed sequentially for each of the multiple channels.

Abstract: A method and system for providing a network protocol for utility services are disclosed are disclosed. In one embodiment, a computer-implemented method comprises discovering a utility network, wherein a constant powered meter sends network discovery messages to find the utility network. Neighboring meters are discovered, wherein the constant powered meter sends hello messages periodically. The constant powered meter is registered with the utility network. Further, the battery powered meter finds and associates itself with a constant powered meter. The constant powered meter also registers its associate battery powered meter with the utility network. The constant powered meter sends a node registration message to the gateway of the utility network. The constant powered meter can sense outage problems with the gateway and the neighbors of its network, and search and migrate to an alternate network.

Abstract: A radio transmission apparatus and method for multicasting or broadcasting common data to a plurality of radio receiving apparatuses. The apparatus and method acquire per-subcarrier reception quality information from a radio receiving apparatus. A subcarrier is selected for the multicasting or broadcasting among a plurality of subcarriers, each of which has a different frequency, based on the acquired per-subcarrier reception quality information. And the transmission power of the selected subcarrier is controlled.

Abstract: Systems and methods for improving the performance of wireless telecommunications networks by reducing data communications between a mobile station and a base station. One embodiment of the invention is implemented in an IS2000 (cdma2000) network. This network communicates data from a base station to a mobile station over a supplemental forward channel. In order to maintain the best communication channel for data transmissions, the mobile station monitors the signals received from an active set of base stations and identifies the strongest signal of a reduced active set so that the corresponding base station can be selected for data communications. Upon the occurrence of conditions indicating that a new base station within the reduced active set should be selected, the mobile station provides a notification to the base stations in the reduced active set so that further data transmissions will be made by the newly selected base station.

Abstract: A method of operating a communication system is disclosed. A first wireless device associated with a first profile is communicated with using a first multi-antenna mode. A second wireless device associated with a second profile is communicated with using the first multi-antenna mode. A network resource utilization is determined. It is determined that the network resource utilization satisfies a criteria. Based on the network resource utilization satisfying the criteria, at least one control message is sent that instructs the second wireless device to use a second multi-antenna mode.

Abstract: A wireless communication apparatus and a frequency channel selecting method. The wireless communication apparatus includes a transmitting/receiving unit, a storage unit storing updateable indexes relating to a communication condition, an evaluation reference updating unit for updating a reference of a communication quality based on the stored indexes, and a controller that selects frequency channels to communicate data and instructs the transmitting/receiving unit to switch to the selected frequency channels. The frequency channel selecting method includes updating an index representative of a communication quality of a wireless communication for each of a plurality of frequency channels, storing the updateable indexes, updating a reference of a communication quality based on the stored indexes, and selecting frequency channels for communicating based on the updated reference.

Abstract: A system and method for indicating signal strength of a multi-mode wireless communication device is disclosed. The wireless communications device simultaneously displays signal strength indicators of multiple radio access technologies on the multi-mode wireless communication device. In an exemplary method, the multi-mode wireless device determines a first signal strength of a first radio access technology and displays the signal strength in a designated annunciator area of a display of the device. The device then determines availability and signal strength for a second radio access technology and further displays a second signal strength indicator in the annunciator area corresponding to the second determined signal strength of the second radio access technology.

Abstract: Techniques are disclosed for detecting a packet. One technique includes sampling a received signal to produce a sequence of samples wherein the sequence of samples includes a plurality of subsequences of samples; cross correlating the subsequences of samples with a known form of the subsequence to produce cross correlations; self correlating the cross correlations to produce a plurality of self correlations; summing the self correlations; and processing the sum of the self correlations.

Abstract: Methods and apparatuses for reducing an amount of bandwidth required for feedback to a transmitter station in a closed-loop multiple-input multiple-output (MIMO) system are described herein. The methods may include initially measuring at a receiver station channel qualities associated with receiving signals from a transmitter station for a first and a second spatial channel, the transmitter and receiver stations employing a closed-loop MIMO system. The receiver station may then determine a first and a second channel quality indicator (CQI) based on the measured channel qualities and may then transmit to the transmitter station the first and the second CQI to directly and indirectly identify a first and a second modulation coding scheme (MCS) entry among a plurality of ordered MCS entries, respectively. The second MCS entry being one of a selected subset of lower ordered MCS entries relative to the first MCS entry.

Abstract: A multimode communication integrated circuit comprising baseband processing circuitry with a shared radio interface. Various aspects of the present invention may comprise a processor module adapted to perform various processing (e.g., baseband processing) in support of multimode communications. A first radio module may be communicatively coupled to the processor module through a common communication interface. A second radio module may also be communicatively coupled to the processor module through the common communication interface. The common communication interface may, for example, be adapted to communicate information over a communication bus that is shared between the processor module and a plurality of radio modules (e.g., the first and second radio modules).

Abstract: A wireless communication apparatus 10 having a plurality of frequency channels and being capable of wireless communication with a plurality of different terminals includes a channel allocation control unit 15 for allocating a different frequency channel to a terminal in a different rank based on a rank indicating a priority of communication quality of the terminal.

Abstract: A method and system for achieving a link budget improvement in a diverse OFDM radio system by addressing the timing misalignment issue that can occur due to the differences in propagation time in signals between mobile stations and Radio Access Nodes. Timing misalignment is shared or split between the primary path to a primary Radio Access Node and a diverse path to a diverse Radio Access Node. The relative timing offsets between mobile stations are adjusted, the mobile stations are grouped into zones using a variety of different grouping techniques, and the transmission for each mobile station is scheduled, using one or more of a variety of scheduling techniques.

Abstract: A signal detect circuit includes a signal strength measuring differential output linear amplifier. A positive peak detection circuit is coupled to the positive output terminal of the linear amplifier and generates a signal that represents a peak magnitude of a signal received from the positive output terminal. Likewise, a negative peak detection circuit is coupled to the negative output terminal of the linear amplifier and generates a signal that represents a peak magnitude of a signal received from the negative output terminal. Upon power up of the signal detect circuit, a comparison circuit detects when the positive and negative peak signal magnitudes has both exceed respective values at least once. Once this occurs, the comparison circuit compares an interpolation of the positive peak signal and the negative peak signal with the value. If the interpolated signal falls below the value, the comparison circuit generates a signal representing that no signal is being received.

Abstract: In one illustrative scanning and decoding method, a signal strength level of an RF signal on an RF channel is measured for a plurality of RF channels of an RF band. The act of measuring a signal strength level is repeated at least one time to obtain at least one other signal strength level of the RF signal. Subsequently, an averaging function is completed with use of the signal strength level and the at least one other signal strength level for identifying an averaged signal strength level of the RF signal. At least one optimal RF signal is then identified based on the averaged signal strength levels of the RF signals on the RF channels. In between the repeated acts of measuring signal strength levels of the RF signals, and prior to identifying the averaged signal strength levels, control information is decoded on at least one of the RF channels and stored in memory.

Abstract: A transmitting apparatus, a transmitting method, a receiving apparatus, a receiving method, a transceiver, a communication apparatus and method, a recording medium, and a program in which high quality voice can be decoded. A cellular telephone outputs coded voice data and also supplies uncoded voice sample data to a switching center while a telephone call is not made. Based on voice data used for the previous calculation processing and newly input voice data, the switching center performs calculation processing for quality-improving data for improving the quality of voice to be output from a cellular telephone that receives the coded voice data. The switching center stores the optimal quality-improving data as a user information database in association with the cellular telephone. The cellular telephone decodes the coded voice data based on the optimal quality-improving data supplied from the switching center.

Abstract: A transmitting apparatus, a transmitting method, a receiving apparatus, a receiving method, a transceiver, a communication apparatus and method, a recording medium, and a program in which high quality voice can be decoded. A cellular telephone outputs coded voice data and also supplies uncoded voice sample data to a switching center while a telephone call is not made. Based on voice data used for the previous calculation processing and newly input voice data, the switching center performs calculation processing for quality-improving data for improving the quality of voice to be output from a cellular telephone that receives the coded voice data. The switching center stores the optimal quality-improving data as a user information database in association with the cellular telephone. The cellular telephone decodes the coded voice data based on the optimal quality-improving data supplied from the switching center.

Abstract: A user guidance system includes a communication history receiver receiving communication history information of a mobile communication terminal; a traffic information generator receiving resource state information from a base station and generating communication traffic information at the base station; a dissatisfaction calculator calculating a dissatisfaction with a recommended action to a user of the mobile communication terminal, based on the communication history information and the communication traffic information; a recommended action extractor extracting a recommended action for the user to be notified of, based on dissatisfactions with a plurality of recommended actions; and an information transmitter transmitting the recommended action to the mobile communication terminal.

Abstract: Systems and methodologies are described that facilitate creating antenna ports to correspond to two or more groups of user equipment (UEs). The subject innovation can organize two or more groups of user equipment and signal to each of the two or more groups a respective antenna port. The subject innovation can further communicate mapping information, a reference signal, or delay related to a linear combination in order to identify antenna ports. Based on such communicated information, the reference signal can be decoded in order to identify each antenna port.

Abstract: The subject matter discloses a wireless transmitter comprising a network interface for receiving and transmitting the data; storage for storing the data received at the transmitter by the network interface; a processor for handling the data stored in the storage and determining the work channel; and an indicating module for indicating to the processor that a level of quality of service provided in transmitting the data to the receiver such that the transmitter is capable of switching the work channel as a function of the level of quality of service. The data may be medical related data, more specifically ECG data.

Abstract: The object of the present invention is provide a mobile communication system which can improve a communication quality of the mobile communication system as a whole by changing a transmission method for transmitting common information. Each of the mobile stations 200a to 200l comprises a communication quality measurer 230 configured to measure a communication quality of a signal transmitted from the radio station 100a.

Abstract: Systems and methods that provide wireless communications are provided. One or more of the systems and methods may include, for example, selecting a lower data rate or a higher data rate based upon at least an evaluation of the operating conditions of a radio network. The evaluation may include, for example, computing a weighted signal strength measurement in which the weighting gives emphasis to the lower signal strength measurements of fading radio frequency signals.

Abstract: A wireless client station includes a received signal strength module to estimate N signal strengths of N signals received by the wireless client station from N access points, respectively, where N is an integer greater than one. The wireless client station further includes a control module to determine N path losses based on the N signal strengths and N transmit power signals included in the N signals. The control module selects and associates with one of the N access points based on a lowest one of the N path losses. The control module adjusts a minimum transmit power of the wireless client station based on a sum of the lowest one of the N path losses and a receiver sensitivity of the wireless client station.

Abstract: The primitives between an upper management layer and the MAC layer within a mobile station and a base station are defined in order to specify and clarify the operations within the protocol stack layers in a broadband wireless access system to allow a mobile station to perform a method of connecting to the network. Media Independent Handover (MIH) procedures can be achieved because the NCMS and MIH layer can communicate through use of these primitives.

Abstract: A control method for a high-frequency radio equipment and a high-frequency radio equipment system in spread spectrum radio data communication are provided which are interference-tolerant and can maintain transmission quality with improved receiving sensitivity. A high-frequency radio equipment system provided with, in a base station, an antenna part comprised by a plurality of antennas, a radio part for amplifying a received signal, band-limiting and down-converting it to an intermediate frequency, a signal processing part for carrier-demodulating the signal inputted from the radio part, demodulating the signal which was despread-spectrum processed and synchronized and decoding the received data, an antenna control part for determining a code error rate for the received data inputted from the signal processing part, forming an appropriate antenna pattern based on the error rate and outputting a signal for controlling an antenna switching part according to the information of the antenna pattern.